I found this article from earlier this year: https://blog.discourse.org/2025/04/discourse-and-the-fediverse/
However, I haven't come across that much content from Discourse platforms over here on Lemmy/Piefed. Is there more work to do with the plugins, or should we work with organizations running Discourse to help them connect with us?
For example, the threadiverse communities for OpenStreetMaps is relatively small, and being able to see / contribute to community.openstreetmap.org would be amazing.
Of course, I can't say anything about other forums.